[msm8x60] Add support for uart in 8660 bootloader.

Initialize and configure UART_DM in legacy mode (without
Data Mover) to support UARt in bootloader.

Features currently supported/unsupported:
- Legacy mode - no Data Mover
- Support RX/TX path
- No TX/RX Flow control
- Polling mechanism rather than Interrupt based
- Watchdog timeout not handled during long wait

Host Configuration:
Speed: 115200
Data bits: 8
Stop bits: 1
Parity: None
Flow control: None

CRs-fixed: 243843

Change-Id: I0296f77a40bf3e2f0e4040774a9820e836ca588e
diff --git a/platform/qsd8650a/platform.c b/platform/qsd8650a/platform.c
index 9fb28ef..5a64ca0 100644
--- a/platform/qsd8650a/platform.c
+++ b/platform/qsd8650a/platform.c
@@ -46,7 +46,7 @@
 void platform_early_init(void)
 {
         //uart3_clock_init();
-	uart_init();
+	//uart_init();
 
 	platform_init_interrupts();
 	platform_init_timer();